Your post makes absolutely no sense. The filibuster is what killed getting our judges confirmed. We needed every vote we could muster. It would have been in Chafee's political interest to vote FOR the filibuster, not AGAINST it. Chafee voted with the president on his judicial nominees, and we continue to need his help on getting to 60 votes.
If you can't get past your bizarre fantasy that his vote made a difference I give up on you.
Now that his vote on a filibuster will matter he's on the spot and he needs cover to protect him from a pro-abortion opponent.
End the filibuster and he can vote against all the pro-life judge he want and they'll be approved anyway- and he won't be blamed.